RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4034 locations in the last 30 days (4211 reports) · Last sighting yesterday

📰 Blog
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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

📰 This week’s rat recap

Weekly Rat Trends — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 days on average to resolve a complaint
Read the full recap →

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/15/20267033 N LEOTI AVEForest Glen45Completed0 daysInternetCity 311
6/18/20266137 N LENOX AVEForest Glen39Completed4 daysMobile DeviceCity 311
1/31/20266134 N KEELER AVEForest Glen39Completed2 daysMobile DeviceCity 311
6/19/20266301 N LA CROSSE AVEForest Glen39Completed3 daysMobile DeviceCity 311
2/18/20265849 W TOUHY AVEForest Glen45Completed1 dayMobile DeviceCity 311
6/2/20266147 N LENOX AVEForest Glen39Completed2 daysMobile DeviceCity 311
7/27/20266270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
9/8/20266100 N KEELER AVEForest Glen39Completed16 daysMobile DeviceCity 311
8/24/20256255 N KNOX AVEForest Glen39Completed12 daysInternetCity 311
9/10/20266538 N TAHOMA AVEForest Glen45Completed11 daysInternetCity 311
8/5/20256767 N DOWAGIAC AVEForest Glen45Completed12 daysInternetCity 311
10/19/20266250 N LENOX AVEForest Glen39Completed15 daysMobile DeviceCity 311
8/28/20256009 N LOUISE AVEForest Glen39Completed12 daysInternetCity 311
8/4/20256230 N KEYSTONE AVEForest Glen39Completed11 daysAlderman's OfficeCity 311
7/3/20266305 N LA CROSSE AVEForest Glen39Completed10 daysMobile DeviceCity 311
7/4/20266127 N KIRKWOOD AVEForest Glen39Completed9 daysInternetCity 311
8/29/20254842 W AINSLIE STForest Glen45Completed13 daysMobile DeviceCity 311
9/27/20254834 W ARGYLE STForest Glen45Completed10 daysInternetCity 311
8/25/20266153 N KARLOV AVEForest Glen39Completed14 daysInternetCity 311
9/6/20254812 W AINSLIE STForest Glen45Completed5 daysMobile DeviceCity 311
9/25/20254830 W WINNEMAC AVEForest Glen45Completed5 daysInternetCity 311
9/23/20255851 N LOUISE AVEForest Glen39Completed7 daysInternetCity 311
12/5/20255022 W CATALPA AVEForest Glen39Completed4 daysMobile DeviceCity 311
7/5/20266216 N FOREST GLEN AVEForest Glen39Completed8 daysInternetCity 311
8/4/20256332 N KIRKWOOD AVEForest Glen39Completed11 daysAlderman's OfficeCity 311
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